Some thing that i dig from the net during my holiday !
Feed for helix antenna and some ways to match it :
http://www.f1afz.fr/montages/helice_2.4/helice2.php
Some strange feeders whit wide band planar spirals ? /if You know what these are tell me please/ :
one circular patch :
Similar link http://www.f1afz.fr/montages/patch.php
Interesting sector :
This one is dielectric filled horn – rescently I seen one simiar russian antenna .
I was used something very similar before time. Omnies are pain in the a$$ to build π
Here is interesting backfire helix for 2.3ghz :
CHEAP Signal source for 2.440 GHz :
A lot of reading for spiral antennas and qlp feeders π
